On March 13, 2009, EPA and Tetra Tech Superfun Technical Assessment and Response Team (START) mobilized to the Railroad Street Drum site and met with EPD and the property owner to conduct further assessment of site conditions. During the assessment personnel observed numerous drums and containers in various buildings at the site. While the majority of containers appeared to be empty, label information indicated that many formerly contained pesticides, including toxaphene, methyl parathion, 4,4-dichlorodiphenyldichlorethane (DDD), 4,4- dichlorodiphenyldichlorethylene (DDE), 4,4- dichlorodiphenyltrichloroethane (DDT), aldrin, alpha-BHC, captan, gamma-BHC (Lindane), and dieldrin.
Based on observations during response activities and available knowledge regarding chemicals formerly used at the site, EPA directed Tetra Tech START to collect six waste samples and four soil samples from the site. Analytical results for these samples are highlighted below:
• Waste samples WS-02 and WS-05 indicated the presence of pesticides at concentrations exceeding Region 4 Removal Action Levels (RAL), including 4,4-DDD, 4,4-DDE, 4,4-DDT, aldrin, alpha-BHC, gamma-BHC (Lindane), and dieldrin. • Soil sample S-01, which was collected from the small drainage path that runs from the northeastern corner of Building 2 towards Building 1 indicated the presence of arsenic (up to 48 mg/kg) at concentrations exceeding the Removal Action Level (RAL). • Soil samples S-02, which was collected from inside Building 2, and S-04, which was collected from inside Building 1, indicated the presence of pesticides at concentrations exceeding RALs, including toxaphene (up to 67,100 mg/kg), 4,4-DDT (up to 3,390 mg/kg), and alpha-BHC (up to 37.2 mg/kg).
All other sample results were below RALs. Based on these results, further characterization and delineation of contaminants should be conducted to determine extent of contamination.
On May 18, 2009, OSC Nattis and OSC Ball along with START personnel and EPA Science and Ecosystems Support Division (SESD) representatives mobilized to the site to conduct soil and groundwater sampling. OSC Nattis and START personnel collected the following soil samples.
• 3 surface (0-6 inches) soil samples at the 17 Railroad Street area in the vicinity of the 3 Above Ground Storage Tanks (ASTs). • 3 surface (0-6 inches) soil samples and 1 subsurface (12-24 inches) soil sample in the area to the east and downgradient of Building 1.
The samples will be analyzed for Volitile Organic Compounds (VOCs), Semivolitile Organic Compounds (SVOCs), Chlorinated Pesticides, Target Analyte List (TAL) Metals, and Organophosporus Pesticides.
OSC Ball and SESD collected groundwater samples from 4 residential wells at the following addresses:
• 91 Line Creek Road, Senioa, Georgia 30276 • 119 Line Creek Road, Senioa, Georgia 30276 • 148 Line Creek Road, Senioa, Georgia 30276 • 152 Line Creek Road, Senioa, Georgia 30276
The samples will be analyzed for VOCs, SVOCs, Chlorinated Pesticides, TAL Metals, Special Toxaphene using Method 8276 and Organophosporus Pesticides.
On May 19 and 20, 2009 OSC Ball and START collected two air samples and one wipe sample inside the building located at 17 Railroad Street. The first air sample was collected to assess ambient conditions inside the building during an 8-hour period of time. The second air sample was collected to assess active conditions inside the building during an 8-hour period of time; active conditions were simulated using fans as well as the existing HVAC system to circulate air throughout the building for the duration of sampling.
The samples will be analyzed for VOCs, SVOCs, Chlorinated Pesticides, and TAL Metals.
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